40015413440 has 56 divisors (see below), whose sum is σ = 95348706432. Its totient is φ = 15995750400.

The previous prime is 40015413437. The next prime is 40015413469. The reversal of 40015413440 is 4431451004.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461540 + ... + 541340.

It is an arithmetic number, because the mean of its divisors is an integer number (1702655472).

Almost surely, 2^40015413440 is an apocalyptic number.

40015413440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40015413440 is an abundant number, since it is smaller than the sum of its proper divisors (55333292992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40015413440 is a wasteful number, since it uses less digits than its factorization.

40015413440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81385 (or 81375 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 40015413440 its reverse (4431451004), we get a palindrome (44446864444).

The spelling of 40015413440 in words is "forty billion, fifteen million, four hundred thirteen thousand, four hundred forty".